JP3028859B2 - Stepping motor frequency characteristic measurement device - Google Patents
Stepping motor frequency characteristic measurement deviceInfo
- Publication number
- JP3028859B2 JP3028859B2 JP10332191A JP10332191A JP3028859B2 JP 3028859 B2 JP3028859 B2 JP 3028859B2 JP 10332191 A JP10332191 A JP 10332191A JP 10332191 A JP10332191 A JP 10332191A JP 3028859 B2 JP3028859 B2 JP 3028859B2
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- stepping motor
- drive
- repetition frequency
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Control Of Stepping Motors (AREA)
Description
【００１０】[0010]
【産業上の利用分野】本発明は、ステッピングモータの
特性を測定する装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring characteristics of a stepping motor.
【０００２】[0002]
【従来の技術】ステッピングモータは、起動・停止・正
逆転の応答性が良く、正確な回転角度を得ることがで
き、この回転角度を自己保持することができる等の特徴
により、各種の電子制御機器に広く利用されている。従
って、このステッピングモータの特性を測定すること
は、ステッピングモータの製品テストの面から必要であ
る。2. Description of the Related Art A stepping motor has various electronic control features, such as good response of start / stop / forward / reverse rotation, accurate rotation angle, and self-holding of the rotation angle. Widely used for equipment. Therefore, it is necessary to measure the characteristics of the stepping motor from the viewpoint of product test of the stepping motor.
【０００３】[0003]
【発明が解決しようとする課題】このようなステッピン
グモータの特性のうち、外部より与えられる信号に同期
して起動・停止・逆転が可能な領域（自起動領域）の最
大の周波数として規定される最大自起動周波数（ｆ1 ）
と、同期運転しているステッピングモータの周波数を徐
々に上げて行った場合、又は負荷トルクを漸増させて行
った場合にステッピングモータが同期を失わずに応答可
能な領域（スルー領域）における最大周波数として規定
される最大応答周波数（ｆ2 ）とが特に重要である。し
かし、従来のこの種の周波数ｆ1 ，ｆ2 の測定では、モ
ータ軸に取付けたマークを回転検出センサにより検出す
る等の方法を採用しているため、測定にも不便であり、
短時間で高精度の測定結果を得ることができない。従っ
て、ステッピングモータの生産ラインに適用して、短時
間にかつ高精度で最大自起動周波数（ｆ1 ）と最大応答
周波数（ｆ2 ）を測定する技術は、まだ提案されていな
い。THE INVENTION Problems to be Solved Among the characteristics of the stepping motor, is defined as the maximum frequency of the space available start, stop and reverse in synchronism with the signal supplied from the outside (self-activation area) Maximum self-starting frequency (f 1 )
And the maximum frequency in a region where the stepping motor can respond without losing synchronization (through region) when the frequency of the stepping motor that is operating synchronously is gradually increased or when the load torque is gradually increased. The maximum response frequency (f 2 ), defined as However, in the conventional measurement of such frequencies f 1 and f 2 , since a method of detecting a mark attached to a motor shaft by a rotation detection sensor is employed, the measurement is inconvenient.
High accuracy measurement results cannot be obtained in a short time. Therefore, a technique for measuring the maximum self-starting frequency (f 1 ) and the maximum response frequency (f 2 ) in a short time and with high accuracy by applying it to a stepping motor production line has not yet been proposed.
【０００４】本発明の目的は、即時にかつ高精度で最大
自起動周波数と最大応答周波数との特性を測定すること
のできるステッピングモータの周波数特性測定装置を提
供することにある。An object of the present invention is to provide a frequency characteristic measuring device of a stepping motor capable of measuring the characteristics of the maximum self-starting frequency and the maximum response frequency immediately and accurately.
【０００５】[0005]
【課題を解決するための手段】この目的を達成するため
に、本願の第１の発明によるステッピングモータの周波
数特性測定装置は、被測定ステッピングモータの駆動パ
ルスの繰り返し周波数を低い方から高い方に及び高い方
から低い方に往復変化させる駆動手段と、該駆動手段に
より前記駆動パルスの繰り返し周波数の変化に対応する
前記被測定ステッピングモータの駆動電流を検出する駆
動電流検出手段とを備え、前記駆動手段により前記被測
定ステッピングモータの駆動パルスの繰り返し周波数を
低い方から高い方に変化せしめたときの、前記駆動電流
検出手段によって検出される駆動電流が急激に増加する
ときの前記繰り返し周波数を最大応答周波数として検出
し、前記駆動手段により前記被測定ステッピングモータ
の駆動パルスの繰り返し周波数を高い方から低い方に変
化せしめたときの、前記駆動電流検出手段によって検出
される駆動電流が急激に減少するときの前記繰り返し周
波数を最大自起動周波数として検出し得るよう構成され
たものである。 また、本願の第２の発明によるステッピ
ングモータの周波数特性測定装置は、被測定ステッピン
グモータの駆動パルスの繰り返し周波数を低い方から高
い方に及び高い方から低い方に往復変化させる駆動手段
と、該駆動手段により前記駆動パルスの繰り返し周波数
の変化に対応する前記被測定ステッピングモータの駆動
電流を検出する駆動電流検出手段と、前記駆動パルスの
繰り返し周波数の変化対前記駆動電流の変化の関係を表
示せしめる表示手段とを備え、前記駆動パルスの繰り返
し周波数を低い方から高い方に及び前記繰り返し周波数
を高い方から低い方に往復変化させたときの、前記被測
定ステッピングモータの駆動電流が急激に増加及び急激
に減少する変化部分を含むヒステリシス特性を示す電流
特性を前記表示手段に表示させて、前記駆動電流の急激
な増加点の前記繰り返し周波数を最大応答周波数とし、
かつ前記駆動電流の急激な減少点の前記繰り返し周波数
を最大自起動周波数として測定するようにしたものであ
る。 To achieve SUMMARY OF THE INVENTION This object, the frequency characteristic measuring apparatus for a stepping motor according to the first invention of the present patent application is, from low to high a repetition frequency of the drive pulse of the measured stepping motor And higher
Drive means for reciprocating from lower to higher, and
Drive detecting the driving current of the measured stepping motor corresponding to more change in repetition frequency of the drive pulse
A dynamic current detecting means, wherein the measured
Set the drive pulse repetition frequency of the constant stepping motor to
The drive current when changing from low to high
The drive current detected by the detection means increases rapidly
The repetition frequency at the time is detected as the maximum response frequency
And the stepping motor to be measured is
Change the drive pulse repetition frequency from high to low.
Detected by the drive current detecting means when the
The repetitive cycle when the driving current to be applied suddenly decreases
It is configured to detect the wave number as the maximum self-starting frequency.
It is a thing. Further, a stepper according to the second invention of the present application.
The stepping motor frequency characteristic measuring device
Drive motor repetition frequency from low to high
Driving means for changing back and forth from high to low
And a repetition frequency of the driving pulse by the driving unit.
Of the measured stepping motor corresponding to the change of
Driving current detecting means for detecting a current;
The relationship between the change in the repetition frequency and the change in the drive current is shown.
Display means for showing the driving pulse,
Frequency from low to high and the repetition frequency
The measured value was changed when reciprocating was changed from high to low.
The drive current of the constant stepping motor increases rapidly and suddenly
Showing hysteresis characteristics including a decreasing part
The characteristics are displayed on the display means, and the drive current
The maximum repetition frequency is the repetition frequency of the increasing point,
And the repetition frequency at the point where the drive current sharply decreases
Is measured as the maximum self-starting frequency.
You.
【０００６】[0006]
【実施例】以下図面により本発明を詳細に説明する。図
１は、本発明の実施例を示すブロック図であり、１は被
測定のステッピングモータ、２はＣＰＵの如き制御部、
３は制御部２からの周波数指令Ｃf に対応する繰り返し
周波数の駆動パルスによりステッピングモータ１を駆動
する駆動部、４は例えば０．１Ω〜１Ω程度の駆動上殆
ど問題にならない低抵抗４ａを介して駆動部３に直流電
流を供給するＤＣ電源である。５はＣＲＴ等の表示部、
６はフロッピーディスク等による記録部である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a block diagram showing an embodiment of the present invention, wherein 1 is a stepping motor to be measured, 2 is a control unit such as a CPU,
3 is a driving unit for driving the stepping motor 1 by the driving pulse repetition frequency corresponding to the frequency command C f from the control unit 2, 4 via the low-resistance 4a that matters little on the drive, for example, of about 0.1Ω~1Ω And a DC power supply for supplying a direct current to the drive unit 3. 5 is a display unit such as a CRT,
Reference numeral 6 denotes a recording unit using a floppy disk or the like.
【０００７】このような構成において、被測定ステッピ
ングモータ１に加える駆動パルスの繰り返し周波数を徐
々に上げて行くと、抵抗４ａに流れる直流電流（Ａ）は
モータの巻線のインダクタンスの影響で減少する。しか
し、ある点（ｆ2 ）に来ると、モータはこの繰り返し周
波数に応答して回転をすることができない脱調状態とな
りモータ巻線のインダクタンスが急激に低下し、直流電
流（Ａ）が急激に増加する。また、駆動パルスの繰り返
し周波数を徐々に下げて行くと、ある点（ｆ1）でモー
タは再びその時の駆動パルスの繰り返し周波数に応答す
る正常な回転を始め、電流特性は図２の如きヒステリシ
ス特性を示すことになる。この時のｆ1は最大自起動周
波数で、ｆ2 が最大応答周波数である。図３は、実測結
果を示すもので、所期の特性が容易に得られることを示
している。In such a configuration, when the repetition frequency of the drive pulse applied to the stepping motor 1 to be measured is gradually increased, the DC current (A) flowing through the resistor 4a decreases due to the influence of the inductance of the winding of the motor. . However, at a certain point (f 2 ), the motor loses synchronism in response to the repetition frequency, and the motor winding inductance is rapidly reduced, and the DC current (A) is rapidly reduced. To increase. When the repetition frequency of the drive pulse is gradually reduced, the motor starts normal rotation again at a certain point (f 1 ) in response to the repetition frequency of the drive pulse at that time, and the current characteristic is a hysteresis characteristic as shown in FIG. Will be shown. F 1 at this time is in the maximum self-start frequency, f 2 is the maximum response frequency. FIG. 3 shows actual measurement results, and shows that desired characteristics can be easily obtained.
【０００８】[0008]
【発明の効果】以上詳細に説明したように、本発明によ
ればステッピングモータの動作特性のうちで最も重要な
最大自起動周波数と最大応答周波数との特性を回転検出
センサを必要とせずに即時にかつ高精度に簡単に測定す
ることができるので、特にステッピングモータの製造ラ
インに適用し、品質管理上多大の効果を発揮し得るもの
である。As described above in detail, according to the present invention, the most important characteristics of the stepping motor, that is, the maximum self-starting frequency and the maximum response frequency, can be instantly determined without the need for a rotation detection sensor. It can be easily and accurately measured with high accuracy, so that it can be applied particularly to a stepping motor production line and exert a great effect on quality control.
【図１】本発明の実施例を示すブロック図でるあ。FIG. 1 is a block diagram showing an embodiment of the present invention.
【図２】図１の実施例の動作を説明するための特性図で
ある。FIG. 2 is a characteristic diagram for explaining the operation of the embodiment of FIG.
【図３】図１の実施例による実測特性図である。FIG. 3 is an actual measurement characteristic diagram according to the embodiment of FIG. 1;
１ 被測定ステッピングモータ ２ 制御部 ３ 駆動部 ４ ＤＣ電源 ５ 表示部 ６ 記録部 DESCRIPTION OF SYMBOLS 1 Stepping motor to be measured 2 Control part 3 Drive part 4 DC power supply 5 Display part 6 Recording part
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭50−31880（ＪＰ，Ａ) 特開 昭62−254693（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) G01R 31/34 H02P 5/00,7/00,8/00 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-50-31880 (JP, A) JP-A-62-254693 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) G01R 31/34 H02P 5 / 00,7 / 00,8 / 00
Claims (2)
の繰り返し周波数を低い方から高い方に及び高い方から
低い方に往復変化させる駆動手段と、 該駆動手段により前記駆動パルスの繰り返し周波数の変
化に対応する前記被測定ステッピングモータの駆動電流
を検出する駆動電流検出手段とを備え、 前記駆動手段により前記被測定ステッピングモータの駆
動パルスの繰り返し周波数を低い方から高い方に変化せ
しめたときの、前記駆動電流検出手段によって検出され
る駆動電流が急激に増加するときの前記繰り返し周波数
を最大応答周波数として検出し、前記駆動手段により前
記被測定ステッピングモータの駆動パルスの繰り返し周
波数を高い方から低い方に変化せしめたときの、前記駆
動電流検出手段によって検出される駆動電流が急激に減
少するときの前記繰り返し周波数を最大自起動周波数と
して検出し得るよう構成された ステッピングモータの周
波数特性測定装置。1. A repetition frequency of a drive pulse of a stepping motor to be measured is increased from a lower frequency to a higher frequency.
Driving means for reciprocally changed to lower, varying the repetition frequency of the drive pulse by said driving means
The measured stepping motor driving current corresponding to the reduction
And a drive current detecting means for detecting the drive current of the stepping motor to be measured by the drive means.
Change the repetition frequency of the dynamic pulse from low to high
Detected by the drive current detecting means when
The repetition frequency at which the drive current suddenly increases
Is detected as the maximum response frequency, and the
The repetition cycle of the drive pulse of the measured stepping motor
When the wave number is changed from high to low,
The drive current detected by the dynamic current detection means decreases sharply.
The repetition frequency when decreasing the maximum self-start frequency and
An apparatus for measuring the frequency characteristics of a stepping motor configured to be able to detect the frequency characteristic.
の繰り返し周波数を低い方から高い方に及び高い方から
低い方に往復変化させる駆動手段と、 該駆動手段により前記駆動パルスの繰り返し周波数の変
化に対応する前記被測定ステッピングモータの駆動電流
を検出する駆動電流検出手段と、 前記駆動パルスの繰り返し周波数の変化対前記駆動電流
の変化の関係を表示せしめる表示手段とを備え、 前記駆動パルスの繰り返し周波数を低い方から高い方に
及び前記繰り返し周波数を高い方から低い方に往復変化
させたときの、前記被測定ステッピングモータの駆動電
流が急激に増加及び急激に減少する変化部分を含むヒス
テリシス特性を示す電流特性を前記表示手段に表示させ
て、前記駆動電流の急激な増加点の前記繰り返し周波数
を最大応答周波数とし、かつ前記駆動電流の急激な減少
点の前記繰り返し周波数を最大自起動周波数として測定
するようにしたステッピングモータの周波数特性測定装
置。 2. A drive pulse for a stepping motor to be measured.
Repetition frequency from low to high and high
A driving means for reciprocally changing the driving pulse to a lower one; and a driving means for changing the repetition frequency of the driving pulse.
Current of the measured stepping motor corresponding to the
Current detection means for detecting a change in the repetition frequency of the driving pulse versus the driving current
Display means for displaying the relationship of the change of the drive pulse, the repetition frequency of the drive pulse from low to high
And the repetition frequency changes from high to low
Drive power of the measured stepping motor
Hiss with transitions where flow rapidly increases and decreases
A current characteristic indicating a teresis characteristic is displayed on the display means.
The repetition frequency of the point where the drive current suddenly increases
Is the maximum response frequency, and the drive current sharply decreases.
Measure the repetition frequency of the point as the maximum self-starting frequency
Frequency characteristic measuring device for stepping motor
Place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10332191A JP3028859B2 (en) | 1991-04-09 | 1991-04-09 | Stepping motor frequency characteristic measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10332191A JP3028859B2 (en) | 1991-04-09 | 1991-04-09 | Stepping motor frequency characteristic measurement device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04310883A JPH04310883A (en) | 1992-11-02 |
| JP3028859B2 true JP3028859B2 (en) | 2000-04-04 |
Family
ID=14350934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10332191A Expired - Fee Related JP3028859B2 (en) | 1991-04-09 | 1991-04-09 | Stepping motor frequency characteristic measurement device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3028859B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008028803A1 (en) * | 2008-06-19 | 2009-12-24 | Raytheon Anschütz Gmbh | Method for driving stepper motors |
-
1991
- 1991-04-09 JP JP10332191A patent/JP3028859B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04310883A (en) | 1992-11-02 |
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